I'm trying to get my tropicalis to breed, and not having any luck. I kept them warm (mid-upper 80s) for a couple of months, gradually lowering the water level. Added cool water, which had no affect. Tried keeping it cool, adding cool daily and then warming it up, repeating the warm cycle. Up and down- nothing. I realize that not many people work with this species, but if anybody has any good suggestions, I would appreciate it.